CN219627749U - Electronic equipment - Google Patents
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- CN219627749U CN219627749U CN202222636736.0U CN202222636736U CN219627749U CN 219627749 U CN219627749 U CN 219627749U CN 202222636736 U CN202222636736 U CN 202222636736U CN 219627749 U CN219627749 U CN 219627749U
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- heat dissipation
- layer
- crease
- electronic device
- module
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 159
- 239000010410 layer Substances 0.000 claims description 188
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 230000001050 lubricating effect Effects 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 15
- 239000004519 grease Substances 0.000 claims description 11
- 238000005461 lubrication Methods 0.000 claims description 10
- 229910021389 graphene Inorganic materials 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 2
- 230000020347 spindle assembly Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 27
- 230000007774 longterm Effects 0.000 abstract description 5
- 230000037303 wrinkles Effects 0.000 abstract description 5
- 239000004809 Teflon Substances 0.000 description 9
- 229920006362 Teflon® Polymers 0.000 description 9
- 239000012790 adhesive layer Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 229940058401 polytetrafluoroethylene Drugs 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000032798 delamination Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Signal Processing (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides electronic equipment, which comprises a main middle frame, an auxiliary middle frame, a flexible screen module, a rotating shaft assembly and a flexible heat dissipation module, wherein the flexible screen module is connected with the main middle frame and the auxiliary middle frame, the main middle frame and the auxiliary middle frame are rotationally connected through the rotating shaft assembly, one end of the flexible heat dissipation module is connected with the main middle frame or the flexible screen module, the other end of the flexible heat dissipation module is connected with the auxiliary middle frame or the flexible screen module, and the flexible heat dissipation module is provided with at least one crease part. According to the utility model, at least one crease part is arranged on the flexible heat radiation module, so that when an electronic product is folded, the flexible heat radiation module can be preferentially bent at the position of the crease part, and the crease part can partially absorb redundancy generated by stretching deformation, so that wrinkles are not easy to occur at other positions of the flexible heat radiation module, and the flexible heat radiation module can be ensured to still have a stable form after long-term use.
Description
Technical Field
The utility model relates to the technical field of electronic equipment, in particular to electronic equipment.
Background
For foldable electronic equipment adopting a folding screen such as a folding mobile phone, the folding screen cannot effectively dissipate heat in a trans-axial mode, so that the temperature difference between different positions of an upper shell and a lower shell or a flexible screen module is large, display color difference and screen reliability are affected, and user experience is affected.
Disclosure of Invention
The utility model aims to provide electronic equipment so as to solve the problem that a folding screen in the prior art cannot effectively radiate heat in a trans-axial mode.
The utility model provides an electronic device, which comprises:
a main middle frame;
an auxiliary middle frame;
the flexible screen module is connected to the main middle frame and the auxiliary middle frame;
the main middle frame and the auxiliary middle frame are rotationally connected through the rotating shaft assembly;
the flexible heat dissipation module, the one end of flexible heat dissipation module connect in main center or flexible screen module, the other end of flexible heat dissipation module connect in vice center or flexible screen module, flexible heat dissipation module is provided with the crease portion of at least one.
According to the utility model, at least one crease part is arranged on the flexible heat radiation module, so that when an electronic product is folded, the flexible heat radiation module can be preferentially bent at the position of the crease part, and the crease part can partially absorb redundancy generated by stretching deformation, so that wrinkles are not easy to occur at other positions of the flexible heat radiation module, the flexible heat radiation module can be ensured to still have a stable form after long-term use, and the flexible heat radiation module is not easy to clamp into a moving door panel seam in long-term use.
In a specific design, the central area of the rotating shaft assembly comprises a first door plate, the crease part comprises at least one first crease part, and the projection of the first crease part coincides with the projection of the first door plate along the thickness direction of the electronic equipment.
The position of the crease part is aligned with the first door plate, so that the flexible heat radiation module can be bent at the position opposite to the first door plate, but not at the position opposite to the door plate seam, and the crease part can be prevented from being clamped into the door plate seam, and the flexible heat radiation module is prevented from being pinched off.
In a specific design, the rotating shaft assembly further comprises a second door plate and a third door plate, wherein the second door plate and the third door plate are respectively arranged on two opposite sides of the first door plate, and a first gap is formed between the second door plate and the main middle frame; the crease part further comprises at least one second crease part, the second crease part is overlapped with the projection of the first gap along the thickness direction of the electronic equipment, and the first gap is used for accommodating the second crease part in the unfolded state of the electronic equipment.
The flexible heat radiation module can be bent at the second crease, and the redundant deformation absorbed by the second crease can be contained in the first gap, so that the problem of screen arching caused by overlarge redundant quantity can be avoided.
In one specific design, a second gap is formed between the third door panel and the auxiliary middle frame; the crease part further comprises at least one third crease part, the third crease part is overlapped with the projection of the second gap along the thickness direction of the electronic equipment, and the second gap is used for accommodating the third crease part in the unfolded state of the electronic equipment.
The second crease part is arranged at the position corresponding to the second gap of the flexible heat radiation module, the flexible heat radiation module can be bent at the third crease part, and the redundant deformation absorbed by the third crease part can be contained in the second gap, so that the problem of screen arching caused by overlarge redundant quantity can be avoided.
In one specific design, the flexible heat dissipation module includes a heat dissipation layer, and the crease is formed on the heat dissipation layer. The heat dissipation layer can have good heat conduction and heat dissipation, and heat in the main middle frame and the auxiliary middle frame can be absorbed and dissipated by the heat dissipation layer, so that heat balance in the main middle frame and the auxiliary middle frame can be ensured, and the problem of heat accumulation or local overhigh heat is avoided.
In one specific design, the heat dissipation layer is a graphite layer or a graphene layer. The graphite or graphene material has good heat conductivity and flexibility, and can rapidly radiate heat in the main middle frame and the auxiliary middle frame to the outside of the electronic equipment.
In a specific design, the flexible heat dissipation module further includes a hardening layer, the hardening layer is disposed on the heat dissipation layer, the hardness of the hardening layer is greater than that of the heat dissipation layer, and the hardening layer is disposed on at least one side of the first crease portion.
The hardening layer can be arranged on one side of the heat dissipation layer, which faces the flexible screen module, and the hardness of the hardening layer is relatively high, so that the flexible heat dissipation module is not easy to deform in the area with the hardening layer, and therefore bending deformation of the flexible heat dissipation module at the position of the crease part is facilitated, the redundant quantity generated by deformation can be absorbed by the crease part, and deformation such as wrinkling can not be generated at other positions, thereby ensuring the overall form of the flexible heat dissipation module, and avoiding the problem that redundant parts are pinched off by a door panel slit or a screen arch is generated.
In one specific design, the stiffening layer is a polyimide layer. The polyimide material has excellent mechanical performance, and the tensile strength of the unreinforced matrix material can reach more than 100MPa, so that the part of the flexible heat dissipation module with the hardening layer is not easy to deform relative to other parts, and the bending deformation of the crease part is facilitated.
In one specific design, the heat dissipation layer and the stiffening layer are connected by a glue layer. Thereby, the connection between the hardening layer and the heat dissipation layer can be facilitated, and the connection reliability of the hardening layer and the heat dissipation layer is ensured.
In one particular design, a third gap is provided between the first door panel and the second door panel, and a fourth gap is provided between the first door panel and the third door panel; the hardened layer coincides with the projection of the third slit and/or the fourth slit in the thickness direction of the electronic device. Therefore, the parts aligned with the third gap and the fourth gap on the flexible heat radiation module can be reinforced through the hardening layer, deformation of the parts aligned with the third gap and the fourth gap on the flexible heat radiation module is prevented, the deformed parts on the flexible heat radiation module only occur at the positions of the crease parts, the whole form of the flexible heat radiation module can be ensured, and the parts with partial redundancy are prevented from being stretched into the third gap or the fourth gap to be pinched off.
In a specific design, the first crease is parallel to the third and fourth slits, and a distance between the first crease and the third and fourth slits is greater than or equal to 1mm. Therefore, the flexible heat radiation module can be bent at the first crease part, and can not be bent at the positions corresponding to the third gap and the fourth gap, so that the flexible heat radiation module is prevented from being clamped into the third gap or the fourth gap.
In one specific design, the flexible heat dissipation module further includes a lubrication layer disposed outside of the heat dissipation layer.
The lubricating layer is arranged on the outer side surface of the radiating layer, so that friction between the flexible radiating module and the contacted part can be reduced, abrasion is reduced, and the service lives of the flexible radiating module and the contacted part are prolonged.
In one specific design, the lubricating layer is a polytetrafluoroethylene layer or grease.
In one specific design, the flexible heat dissipation module further includes a protective layer disposed outside the heat dissipation layer. Thereby ensuring the connection reliability of the protection layer and the heat dissipation layer.
In one specific design, the protective layer is polyethylene terephthalate (polyethylene glycol terephthalate, PET). The PET layer has good creep resistance, fatigue resistance, abrasion resistance and dimensional stability.
In one specific design, the flexible heat dissipation module further comprises a metal layer disposed outside the heat dissipation layer. When some components in the electronic equipment are required to be grounded through the flexible heat dissipation module, the grounding can be realized through the metal layer in the flexible heat dissipation module.
In a specific design, the heat dissipation layer is provided with at least two layers, so that the heat dissipation performance can be effectively improved.
In one particular design, the height of the crease is less than or equal to 0.2mm. The crease part is arched to one side of the flexible heat radiation module, and the arched height is not more than 0.2mm, so that the flexible heat radiation module can be bent along the crease part, and the problem of arched screen of the flexible screen module caused by overlarge crease part is avoided.
In one specific design, the crease has a U-shaped, V-shaped or W-shaped cross-section. Therefore, the flexible heat radiation module can be bent at the position of the crease part, and the problem that the crease part is pinched off by the door panel or the screen is arched due to the fact that the crease is not generated at other positions can be solved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram (hidden flexible screen module) of an electronic device according to an embodiment of the present utility model;
FIG. 3 is an exploded view of an electronic device according to an embodiment of the present utility model;
FIG. 4 is a front view of a flexible heat sink module;
FIG. 5 is a side view of a flexible heat dissipation module;
FIG. 6 is a schematic view of the hinge assembly in an unfolded state of the electronic device;
FIG. 7 is a schematic diagram of the distribution of the hardened layers;
FIG. 8 is a front view of a flexible heat sink module (II);
FIG. 9 is a cross-sectional view (one) at A-A of FIG. 8;
FIG. 10 is a schematic view of the second and third crease portions being received in the first and second slits;
FIG. 11 is a schematic view of a first crease portion between a third slit and a fourth slit;
FIG. 12 is a cross-sectional view (II) at A-A in FIG. 8;
FIG. 13 is a cross-sectional view (III) at A-A in FIG. 8;
FIG. 14 is a cross-sectional view at B-B in FIG. 8;
fig. 15 is a cross-sectional view (fourth) at A-A in fig. 8.
1-a flexible screen module;
2-a main middle frame;
3-auxiliary middle frame;
4-a flexible heat dissipation module;
41-crease portions;
41 A-A first crease;
41 b-a second crease;
41 c-a third crease;
42-a heat dissipation layer;
43-hardening layer;
44-an adhesive layer;
45-a lubricating layer;
46-a protective layer;
47-metal layer;
5-a spindle assembly;
51-a first door panel;
52-a second door panel;
53-a third door panel;
54-a first gap;
55-a second gap;
56-a third gap;
57-fourth gap.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or limited otherwise; the term "plurality" means two or more, unless specified or indicated otherwise; the terms "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, it should be understood that the terms "upper", "lower", and the like used in the embodiments of the present utility model are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present utility model. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.
For foldable electronic equipment adopting a folding screen such as a folding mobile phone, a plurality of components are integrated in a middle frame of the folding mobile phone, more heat can be generated, the folding screen cannot effectively radiate heat in a cross-axis manner, the temperature difference at different positions of the middle frame or the flexible screen module is large, the display color difference and the screen reliability of the screen are affected, and the user experience is affected.
As shown in fig. 1 to 3, the embodiment of the present utility model provides an electronic device, which may be a mobile phone, a tablet computer, etc. with a folding function, and the embodiment is not limited in detail. For convenience of explanation, the embodiment will be described taking an electronic device as an example of a folding mobile phone.
As shown in fig. 1 to 3, the electronic device specifically includes a main middle frame 2, an auxiliary middle frame 3, a flexible screen module 1, a rotating shaft assembly 5 and a flexible heat dissipation module 4, the flexible screen module 1 is connected to the main middle frame 2 and the auxiliary middle frame 3, and the flexible screen module 1 can integrally cover the main middle frame 2 and the auxiliary middle frame 3 for displaying contents and pictures. The main middle frame 2 and the auxiliary middle frame 3 are rotationally connected through the rotating shaft assembly 5, and when the flexible screen module is used, the main middle frame 2 and the auxiliary middle frame 3 can be rotationally flattened through the rotating shaft assembly 5, so that the flexible screen module 1 can be flattened along with the flexible screen module, and the flexible screen module is convenient for a user to use. When the folding mobile phone is not needed to be used, the main middle frame 2 and the auxiliary middle frame 3 can be folded through the rotation of the rotating shaft assembly 5, so that the flexible screen module 1 is folded corresponding to the two parts of the main middle frame 2 and the auxiliary middle frame 3, and the folding mobile phone and other electronic equipment can be conveniently stored.
As shown in fig. 3 to 5, the flexible panel module is located between the flexible panel module 1 and the middle frame in the thickness direction of the electronic device, one end of the flexible panel module 4 may be connected to the main middle frame 2 or the flexible panel module 1, the other end of the flexible panel module 4 is connected to the sub middle frame 3 or the flexible panel module 1, and the flexible panel module 4 is provided with at least one crease portion 41.
The flexible heat radiation module 4 is thinner and flexible, so that corresponding parts in the main middle frame 2 and the auxiliary middle frame 3 can be connected respectively across the rotating shaft assembly 5, Z-direction space of the electronic equipment cannot be occupied, bending can be generated along with relative rotation of the main middle frame 2 and the auxiliary middle frame 3, heat generated by electronic components in the main middle frame 2 and the auxiliary middle frame 3 can be radiated through the flexible heat radiation module 4, and the problems that the temperature of each area of the main middle frame 2, the auxiliary middle frame 3 and the flexible screen module 1 is balanced, and local heat radiation effect is poor and local heating is too high are avoided.
In addition, in the practical application process, the flexible heat dissipation module 4 is repeatedly stretched along with folding or unfolding of the electronic device, and a certain shaping deformation is displayed after long-term repeated stretching or compression, so that the flexible heat dissipation module 4 is gradually elongated, and the flexible heat dissipation module 4 generates redundant parts, and because the rotating shaft assembly 5 comprises door panels, door panel seams exist between the door panels, no supporting effect on the flexible heat dissipation module 4 exists at the door panel seams, the redundant parts of the flexible heat dissipation module 4 are mainly concentrated at the positions opposite to the door panel seams, so that the redundant parts are clamped into the door panel seams, and further the flexible heat dissipation module 4 is broken by pulling and screen arching.
For this reason, in this embodiment, the flexible heat dissipation module 4 is provided with at least one crease portion 41, and the crease portion 41 may be preformed before the flexible heat dissipation module 4 is applied to an electronic device, so that after the flexible heat dissipation module 4 is applied to an electronic product, when the electronic product is folded, the flexible heat dissipation module 4 is easy to bend at the position of the crease portion 41, and the crease portion 41 can partially absorb redundancy generated by stretching deformation, so that wrinkles are not easy to occur at other positions of the flexible heat dissipation module 4, and it can be ensured that the flexible heat dissipation module 4 still has a stable form after long-term use. The crease 41 may be parallel to the door seam and may be staggered from the door seam, so that the crease 41 may be prevented from being clamped into the door seam, and the flexible heat dissipation module 4 may be prevented from being broken.
Specifically, as shown in fig. 6, the central area of the rotating shaft assembly 5 includes a first door panel 51, the crease portion 41 includes at least one first crease portion 41a, and the projection of the first crease portion 41a coincides with the projection of the first door panel 51 along the thickness direction of the electronic device.
The first door panel 51 is located between the main center 2 and the sub center 3, and the first door panel 51 is held stationary when the main center 2 and the sub center 3 are rotated relative to each other. By aligning the position of the crease 41 with the first door panel 51, the flexible heat dissipation module 4 can be bent at a position opposite to the first door panel 51, and is not easy to bend at a position opposite to the door panel seam, so that the crease 41 is prevented from being clamped into the door panel seam, and the flexible heat dissipation module 4 is prevented from being pinched off.
Specifically, as shown in fig. 6, the rotating shaft assembly 5 further includes a second door panel 52 and a third door panel 53, where the second door panel 52 and the third door panel 53 are respectively disposed on opposite sides of the first door panel 51, and a first gap 54 is formed between the second door panel 52 and the main middle frame 2. When the main middle frame 2 and the auxiliary middle frame 3 relatively rotate, the driving frame can drive the second door plate 52 to rotate, the auxiliary middle frame 3 can drive the third door plate 53 to rotate, wherein a first gap 54 can be formed between the main middle frame 2 and the second door plate 52, and a second gap 55 can be formed between the auxiliary middle frame 3 and the third door plate 53, so that the main middle frame 2 and the auxiliary middle frame 3 can form a water drop shape when being folded, meanwhile, interference among all parts can be avoided under the unfolding state, and the flat unfolding of the flexible screen module 1 is ensured.
As shown in fig. 7, the creasing portion 41 further includes at least one second creasing portion 41b, the second creasing portion 41b overlaps with a projection of the first slit 54 in a thickness direction of the electronic device, and the first slit 54 is configured to accommodate the second creasing portion 41b in an unfolded state of the electronic device.
The width dimension of the first slit 54 is large, and even in the unfolded state of the electronic device, the second fold portion 41b extending into the first slit 54 is not pinched off, so that the flexible heat dissipation module 4 can be provided with the second fold portion 41b at a position corresponding to the first slit 54, the flexible heat dissipation module 4 is easy to bend at the second fold portion 41b, and the redundant deformation amount absorbed by the second fold portion 41b can be accommodated in the first slit 54, as shown in fig. 9, so that the problem of screen arching caused by the excessive redundant amount can be avoided.
Specifically, as shown in fig. 6 and 7, a second slit 55 is provided between the third door panel 53 and the sub-center 3, the creasing portion 41 further includes at least one third creasing portion 41c, the third creasing portion 41c overlaps with a projection of the second slit 55 in a thickness direction of the electronic device, and the second slit 55 is configured to accommodate the third creasing portion 41c in an unfolded state of the electronic device.
The width dimension of the second slit 55 is also larger than the width dimension of the first slit 54, and even if the electronic device is in an unfolded state, the third crease portion 41c extending into the second slit 55 is not pinched off, so that the second crease portion 41b is provided at a position corresponding to the second slit 55 in the flexible heat dissipation module 4, the flexible heat dissipation module 4 is easy to bend at the third crease portion 41c, and the redundant deformation amount absorbed by the third crease portion 41c can be accommodated in the second slit 55, as shown in fig. 9, so that the problem of screen arching caused by the excessive redundant amount can be avoided.
Specifically, the flexible heat dissipation module 4 includes a heat dissipation layer 42, and the crease 41 is formed on the heat dissipation layer 42. The heat dissipation layer 42 can have good heat conduction and heat dissipation, and heat in the main middle frame 2 and the auxiliary middle frame 3 can be absorbed and dissipated by the heat dissipation layer 42, so that heat balance in the main middle frame 2 and the auxiliary middle frame 3 can be ensured, and the problem of heat accumulation or local overhigh heat is avoided.
The heat dissipation layer 42 may be a flexible graphite layer or a graphene film layer, and the graphite or graphene material has good heat conductivity and flexibility, so that heat in the main middle frame 2 and the auxiliary middle frame 3 can be rapidly dissipated to the outside of the electronic device. And the thickness of graphite layer or graphene layer need not thicker, can reach good radiating effect, can not occupy too big Z to the space in the electronic equipment, is favorable to realizing the frivolous of electronic equipment.
Specifically, the flexible heat dissipation module 4 further includes a hardening layer 43, the hardening layer 43 is disposed on the heat dissipation layer 42, and the hardening layer 43 is disposed on at least one side of the first crease portion 41 a.
The hardened layer 43 is provided on the heat dissipation layer 42, the hardened layer 43 has a hardness greater than that of the heat dissipation layer 42, and the hardened layer 43 is provided on at least one side of the first crease portion 41 a.
The hardening layer 43 can be arranged on one side of the heat dissipation layer 42 facing the flexible screen module 1, and because the hardness of the hardening layer 43 is relatively high, the flexible heat dissipation module 4 is relatively difficult to deform in the area with the hardening layer 43, so that the flexible heat dissipation module 4 is favorable for bending deformation at the position of the crease 41, the redundancy generated by deformation can be absorbed by the crease 41, and deformation such as wrinkling is difficult to generate at other positions, thereby ensuring the overall form of the flexible heat dissipation module 4, and avoiding the problem that the redundancy part is pinched off by a door panel slit or a screen arch is generated.
The hardened layer 43 may be a Polyimide (PI) layer, and the Polyimide material has excellent mechanical properties, and the tensile strength of the unreinforced base material may reach more than 100MPa, so that the portion of the flexible heat dissipation module 4 having the hardened layer 43 is less likely to deform relative to other portions, which is beneficial to bending deformation at the crease portion 41.
To facilitate the connection of the hardened layer 43 and the heat dissipation layer 42 while ensuring the reliability of the connection of the hardened layer 43 and the heat dissipation layer 42, the heat dissipation layer 42 and the hardened layer 43 may be connected by an adhesive layer 44.
Specifically, as shown in fig. 6 and 7, a third gap 56 is provided between the first door panel 51 and the second door panel 52, and a fourth gap 57 is provided between the first door panel 51 and the third door panel 53. The hardened layer 43 coincides with the projection of the third slit 56 and/or the fourth slit 57 in the thickness direction of the electronic device. The third gap 56 and the fourth gap 57 are moving door panel gaps, and the moving door panel gaps refer to the fact that in the relative rotation process of the first door panel and the second door panel or the relative rotation process of the first door panel and the third door panel, the widths of the third gap 56 and the fourth gap 57 can be changed, and when the third gap 56 and the fourth gap 57 are smaller, if the parts, where folds appear, of the flexible heat radiation module extend into the third gap 56 or the fourth gap 57, the parts are likely to be pinched off by the third gap 56 or the fourth gap 57.
When the main middle frame 2 and the auxiliary middle frame 3 relatively rotate, the second door panel 52 and the third door panel 53 rotate relative to the first door panel 51, so as to ensure that the second door panel 52 and the third door panel 53 can normally rotate without interfering with the first door panel 51, and a certain gap, namely a third gap 56 and a fourth gap 57, is kept between the second door panel 52 and the third door panel 53 and the first door panel 51. The widths of the third gap 56 and the fourth gap 57 are smaller than those of the first gap 54 and the second gap 55, and if the redundant parts generated by the flexible heat dissipation module 4 extend into the third gap 56 and the fourth gap 57, the redundant parts extending into the third gap 56 and the fourth gap 57 are pinched off in the unfolded state of the electronic device. The first slit 54 and the second slit 55 are static door slits, and the static door slits are that the widths of the first slit 54 and the second slit 55 are not changed when the second door panel 52 rotates relative to the main middle frame 2 or the third door panel 53 rotates relative to the auxiliary middle frame 3.
It should be noted that in the case where the first door panel 51, the second door panel 52, and the third door panel 53 are non-perfect parallelograms, the third slit and the fourth slit are also not perfectly straight, but are generally straight. As shown in fig. 3, the first door panel 51 has a cross-shaped or other shaped top plate partially seen, but is generally linear. The crease 41 is linear, is generally parallel to the door panel seam, namely the third seam and the fourth seam, and can be generally staggered from the door panel seam, so that the crease 41 is prevented from being clamped into the door panel seam, and the problems of pinching off and the like of the flexible heat radiation module 4 are avoided.
In order to prevent a part of the flexible heat dissipation module 4 from extending into the third gap 56 or the fourth gap 57, as shown in fig. 11, the first crease portion 41a may be located between the third gap 56 and the fourth gap 57, and the portion with the hardened layer 43 is aligned with the positions of the third gap 56 and the fourth gap 57 in the thickness direction of the electronic device, so that the portion of the flexible heat dissipation module 4 aligned with the positions of the third gap 56 and the fourth gap 57 may be reinforced by the hardened layer 43, and deformation of the portion of the flexible heat dissipation module 4 aligned with the positions of the third gap 56 and the fourth gap 57 may be prevented, so that the deformable portion of the flexible heat dissipation module 4 may only occur at the position of the crease portion 41, thereby ensuring the overall shape of the flexible heat dissipation module 4, and preventing the partially redundant portion from extending into the third gap 56 or the fourth gap 57 and being pinched off.
Specifically, the first crease portion 41a is parallel to the third slit 56 and the fourth slit 57, and a distance between the first crease portion 41a and the third slit 56 and the fourth slit 57 is 1mm or more. Therefore, the flexible heat dissipation module can be bent at the first crease portion 41a without bending at the positions corresponding to the third slit 56 and the fourth slit 57, and thus is prevented from being clamped in the third slit 56 or the fourth slit 57.
Specifically, as shown in fig. 12, the flexible heat dissipation module 4 further includes a lubrication layer 45, and the lubrication layer 45 is disposed outside the heat dissipation layer 42. Because friction is generated when the flexible heat dissipation module 4 contacts with each door plate or the component on the side of the flexible screen module 1, the flexible heat dissipation module 4 and the contacted component are worn when the flexible heat dissipation module is repeatedly rotated and folded, therefore, the lubricating layer 45 is arranged on the outer side surface of the heat dissipation layer 42, friction between the flexible heat dissipation module 4 and the contacted component can be reduced, abrasion is reduced, and the service lives of the flexible heat dissipation module 4 and the contacted component are prolonged.
The lubricating layer 45 may be a polytetrafluoroethylene layer (Poly tetra fluoroethylene, PTFE) or a grease. The polytetrafluoroethylene layer can be a teflon layer, and the teflon layer and the lubricating grease have excellent lubricating effects. The teflon layer and the lubricating grease can be used instead of each other or in combination. For example, teflon layers may be provided on both sides in the thickness direction of the heat dissipation layer 42; it is also possible to provide a teflon layer on one side of the heat dissipation layer 42 and grease on the other side; grease may be provided on both sides in the thickness direction of the heat dissipation layer 42. In this case, since the cost of the teflon layer is generally higher than that of grease, only grease may be used as the lubricating layer 45, or a combination of grease and teflon layer may be used as the lubricating layer 45 when considering a low cost solution. However, the lubricating effect of the teflon layer is better than that of grease, and therefore, when considering a high performance scheme, only the teflon layer may be used as the lubricating layer 45.
It will be appreciated that the flexible heat dissipation module 4 has portions for connecting the main middle frame 2, the sub middle frame 3 or the flexible screen module 1, and these portions may not be provided with the lubrication layer 45, and only the portion where the relative movement between the flexible heat dissipation module 4 and the contacted member occurs may be provided with the lubrication layer 45.
In order to ensure the reliability of the connection of the lubricating layer 45 and the heat dissipation layer 42, the lubricating layer 45 may be connected and fixed to the heat dissipation layer 42 through an adhesive layer 44. In the case where the heat dissipation layer 42 has the hardened layer 43, a part of the lubricating layer 45 may be provided outside the hardened layer 43, or specifically, the hardened layer 43 may be connected and fixed to the heat dissipation layer by the adhesive layer 44.
When the heat dissipation layer 42 is made of graphite or graphene, delamination, slag falling, and the like are caused after the graphite or graphene is repeatedly bent for a long period of time. For this reason, in the present embodiment, as shown in fig. 13, the flexible heat dissipation module 4 further includes a protection layer 46, and the protection layer 46 is disposed outside the heat dissipation layer 42. The protective layer 46 may be disposed on opposite sides of the heat dissipation layer 42 in the thickness direction so as to cover the heat dissipation layer 42, preventing delamination or slag drop of the heat dissipation layer 42. The protective layer 46 may be disposed at a position opposite to each door panel, or may be disposed at a position on the flexible heat dissipation module 4 for connecting the middle frame or the flexible screen module 1. As shown in fig. 14, fig. 14 shows a state in which the protective layer 46 is located on the flexible heat dissipation module 4 at a position for connecting the center or flexible screen module 1.
In order to ensure the connection reliability between the protective layer 46 and the heat dissipation layer 42, the protective layer 46 and the heat dissipation layer 42 may be adhered and fixed by an adhesive layer 44.
In addition, the protection layer 46 may be matched with the lubrication layer 45 to cover the heat dissipation layer 42, for example, the protection layer 46 is arranged on one side of the heat dissipation layer 42, and the lubrication layer 45 is arranged on the other layer of the heat dissipation layer 42, so that the lubrication layer 45 can realize the lubrication function and also can realize the function of preventing the heat dissipation layer 42 from layering or falling slag; alternatively, the protective layer 46 may be disposed on one side of the heat dissipation layer 42, and the lubricant layer 45 and the protective layer 46 may be disposed on the other side of the heat dissipation layer 42 in sequence; alternatively, a protective layer 46 may be provided on one side of the heat dissipation layer 42, and a hardening layer 43, a protective layer 46, and a lubricating layer 45 may be provided on the other side of the heat dissipation layer 42 in this order.
The protective layer 46 may be polyethylene terephthalate (polyethylene glycol terephthalate, PET), among others. The PET layer has good creep resistance, fatigue resistance, abrasion resistance and dimensional stability.
Specifically, as shown in fig. 15, the flexible heat dissipation module 4 further includes a metal layer 47, and the metal layer 47 is disposed outside the heat dissipation layer 42. When some components in the electronic device need to be grounded through the flexible heat dissipation module 4, grounding can be achieved through the metal layer 47 in the flexible heat dissipation module 4. The metal layer 47 may be copper foil, silver foil, or the like, and the metal layer 47 may be connected to the heat dissipation layer 42 through the adhesive layer 44.
Specifically, the heat dissipation layer 42 may be provided with at least two layers, so that heat dissipation performance may be effectively improved. However, if the thickness of only one of the heat dissipation layers 42 is increased, this increases the risk of delamination of the material and exacerbates the problem of slag drop for graphite or graphene materials. By adopting the mode of combining and laminating the plurality of heat dissipation layers 42, the thickness of each heat dissipation layer 42 is not very large, so that the problems of layering and slag falling of the heat dissipation layers 42 can be avoided. The heat dissipation layers 42 of two adjacent layers can be connected and fixed through the adhesive layer 44, so that reliable connection between the heat dissipation layers 42 can be ensured, and the problems of layering and slag falling of the heat dissipation layers 42 can be avoided. The thickness of each heat dissipation layer 42 may be the same or different, and the present embodiment is not limited thereto.
Specifically, the height of the crease 41 is less than or equal to 0.2mm. It can be understood that the crease portion 41 arches to one side of the flexible heat dissipation module 4, and the height of the arch is not more than 0.2mm, so that the flexible heat dissipation module 4 can be ensured to bend along the crease portion 41, and the problem of arching the flexible screen module 1 caused by oversized crease portion 41 can be avoided.
Specifically, the cross-sectional shape of the crease 41 may be U-shaped, V-shaped or W-shaped, so that the flexible heat dissipation module 4 may be advantageously bent at the position of the crease 41 without generating wrinkles at other positions, which may cause the problem that the wrinkles are pinched off by the door panel slit or the door panel is arched.
In design, the flexible heat dissipation module can span a large area or symmetry and is not limited to a part of the span or a small part of the asymmetry span illustrated in the utility model. Accordingly, the crease portion may be disposed on a large area trans-axial or symmetrical trans-axial flexible heat sink module.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (19)
1. An electronic device, comprising:
a main middle frame;
an auxiliary middle frame;
the flexible screen module is connected to the main middle frame and the auxiliary middle frame;
the main middle frame and the auxiliary middle frame are rotationally connected through the rotating shaft assembly;
the flexible heat dissipation module, the one end of flexible heat dissipation module connect in main center or flexible screen module, the other end of flexible heat dissipation module connect in vice center or flexible screen module, flexible heat dissipation module is provided with the crease portion of at least one.
2. The electronic device of claim 1, wherein the central region of the spindle assembly comprises a first door panel, the crease comprises at least one first crease, and a projection of the first crease coincides with a projection of the first door panel along a thickness direction of the electronic device.
3. The electronic device of claim 2, wherein the rotating shaft assembly further comprises a second door plate and a third door plate, the second door plate and the third door plate are respectively arranged at two opposite sides of the first door plate, and a first gap is arranged between the second door plate and the main middle frame;
the crease part further comprises at least one second crease part, the second crease part is overlapped with the projection of the first gap along the thickness direction of the electronic equipment, and the first gap is used for accommodating the second crease part in the unfolded state of the electronic equipment.
4. The electronic device of claim 3, wherein a second gap is provided between the third door panel and the secondary center;
the crease part further comprises at least one third crease part, the third crease part is overlapped with the projection of the second gap along the thickness direction of the electronic equipment, and the second gap is used for accommodating the third crease part in the unfolded state of the electronic equipment.
5. The electronic device of claim 3, wherein the flexible heat dissipation module comprises a heat dissipation layer, the crease being formed in the heat dissipation layer.
6. The electronic device of claim 5, wherein the heat dissipation layer is a graphite layer or a graphene layer.
7. The electronic device of claim 5, wherein the flexible heat dissipation module further comprises a hardened layer disposed on the heat dissipation layer, the hardened layer having a hardness greater than a hardness of the heat dissipation layer, the hardened layer disposed on at least one side of the first crease.
8. The electronic device of claim 7, wherein the hardened layer is a polyimide layer.
9. The electronic device of claim 7, wherein the heat dissipation layer and the stiffening layer are connected by a glue layer.
10. The electronic device of claim 7, wherein a third gap is provided between the first door panel and the second door panel, and a fourth gap is provided between the first door panel and the third door panel;
the hardened layer coincides with the projection of the third slit and/or the fourth slit in the thickness direction of the electronic device.
11. The electronic device of claim 10, wherein the first crease is parallel to the third and fourth slits, and a distance between the first crease and the third and fourth slits is greater than or equal to 1mm.
12. The electronic device of claim 5, wherein the flexible heat dissipation module further comprises a lubrication layer disposed outside of the heat dissipation layer.
13. The electronic device of claim 12, wherein the lubricating layer is a polytetrafluoroethylene layer or grease.
14. The electronic device of claim 5, wherein the flexible heat dissipation module further comprises a protective layer disposed outside of the heat dissipation layer.
15. The electronic device of claim 14, wherein the protective layer is polyethylene terephthalate.
16. The electronic device of claim 5, wherein the flexible heat dissipation module further comprises a metal layer disposed outside of the heat dissipation layer.
17. The electronic device of claim 5, wherein the heat dissipation layer is provided with at least two layers.
18. The electronic device of any one of claims 1-3, 5-17, wherein a height of the crease is less than or equal to 0.2mm.
19. The electronic device of any one of claims 1-3, 5-17, wherein the crease has a U-shape, V-shape, or W-shape in cross-section.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222636736.0U CN219627749U (en) | 2022-09-30 | 2022-09-30 | Electronic equipment |
| PCT/CN2023/118215 WO2024067061A1 (en) | 2022-09-30 | 2023-09-12 | Electronic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222636736.0U CN219627749U (en) | 2022-09-30 | 2022-09-30 | Electronic equipment |
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| CN219627749U true CN219627749U (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222636736.0U Active CN219627749U (en) | 2022-09-30 | 2022-09-30 | Electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN219627749U (en) |
| WO (1) | WO2024067061A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067061A1 (en) * | 2022-09-30 | 2024-04-04 | 华为技术有限公司 | Electronic device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018094877A1 (en) * | 2016-11-25 | 2018-05-31 | 华为技术有限公司 | Heat dissipation panel, heat dissipation device and electronic apparatus |
| KR20200060639A (en) * | 2018-11-22 | 2020-06-01 | 삼성디스플레이 주식회사 | Display device |
| CN111147630B (en) * | 2019-12-20 | 2021-04-09 | 华为技术有限公司 | Folding screen device |
| CN114449793A (en) * | 2020-11-04 | 2022-05-06 | Oppo广东移动通信有限公司 | Middle frame assembly of electronic equipment and electronic equipment |
| CN115118798A (en) * | 2021-03-19 | 2022-09-27 | Oppo广东移动通信有限公司 | Heat dissipation assembly and foldable electronic equipment |
| CN215683045U (en) * | 2021-07-21 | 2022-01-28 | 深圳市柔宇科技股份有限公司 | Heat dissipation film and foldable display device |
| CN219627749U (en) * | 2022-09-30 | 2023-09-01 | 华为技术有限公司 | Electronic equipment |
-
2022
- 2022-09-30 CN CN202222636736.0U patent/CN219627749U/en active Active
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- 2023-09-12 WO PCT/CN2023/118215 patent/WO2024067061A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067061A1 (en) * | 2022-09-30 | 2024-04-04 | 华为技术有限公司 | Electronic device |
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| WO2024067061A1 (en) | 2024-04-04 |
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